Defined Contribution Plans

12 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Defined Contribution Plans

10. Defined Contribution Plans

The Company has a 401(k) retirement and savings plan for the benefit of qualifying U.S. employees, as well as a defined contribution Personal Retirement Savings Account plan for the benefit of qualifying Ireland employees. For eligible U.S. employees, effective January 1, 2022, the Company makes matching contributions of up to 4% of eligible compensation; prior to January 1, 2022, the Company made matching contributions of up to 3% of eligible compensation on employee contributions of up to 6% of eligible compensation. For eligible Ireland employees, the Company makes contributions of up to 8% of eligible compensation on employee contributions of up to 6% of eligible compensation. Expense recognized for Company contributions to defined contribution plans totaled $1.9 million, $1.7 million and $1.1 million in fiscal 2023, 2022 and 2021, respectively.